remove hatch fancy

--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["hatchling", "hatch-fancy-pypi-readme"]
+requires = ["hatchling"]
 build-backend = "hatchling.build"
 
 [project]
@@ -70,26 +70,6 @@
     "/CHANGELOG.md",
     "/README.md",
 ]
-
-[tool.hatch.metadata.hooks.fancy-pypi-readme]
-content-type = "text/markdown"
-
-[[tool.hatch.metadata.hooks.fancy-pypi-readme.fragments]]
-path = "README.md"
-
-[[tool.hatch.metadata.hooks.fancy-pypi-readme.fragments]]
-text = "\n## Release Information\n\n"
-
-[[tool.hatch.metadata.hooks.fancy-pypi-readme.fragments]]
-path = "CHANGELOG.md"
-pattern = "\n(###.+?\n)## "
-
-[[tool.hatch.metadata.hooks.fancy-pypi-readme.fragments]]
-text = "\n---\n\n[Full changelog](https://github.com/encode/httpx/blob/master/CHANGELOG.md)\n"
-
-[[tool.hatch.metadata.hooks.fancy-pypi-readme.substitutions]]
-pattern = 'src="(docs/img/.*?)"'
-replacement = 'src="https://raw.githubusercontent.com/encode/httpx/master/\1"'
 
 # https://beta.ruff.rs/docs/configuration/#using-rufftoml
 [tool.ruff]